Sharp LC-50LE442U Service Manual page 28

Terminal
Is input source on HDMI? The SPDIF out not
support HDMI source.
Is the audio signal output from IC U2102 pin (92)
(ASPDIF) sent to CN6202?
Check IC U2102 and its peripheral circuits.
The audio signal is not output
No audio signal output from SPDIF terminal (CN6202).
No
No
YES
Change input source to others (AV, TV, etc.).
YES
Check the line between IC U2102 and CN6202.
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